Core i7 2600K turbos up to to 3.8GHz
 

The top Core i7 2000 series, the one that we expect in Q1 2011 is going to work at 3.4GHz. The official name is Core i7 2600K and this quad-core CPU runs at 3.4GHz and boasts eight threads. The K stands for unlocked CPU, something that many overclockers plan to warmly welcome and for less experienced users Turbo 2 will overclock the core to 3.8GHz.
http://www.fudzilla.com/processors/p...works-at-34ghz